Construction and Quality of Best Tracks Parameters for Study of Climate Change Impact on Tropical Cyclones over the North Indian Ocean during Satellite Era - Monitoring and Prediction of Tropical Cyclones in the Indian Ocean and Climate Change - page 14

(DWR) and automatic weather system (AWS) along the coast, ongoing forecast
demonstration project (FDP) on landfalling TCs over the BOB with proposed
aircraft reconnaissance. Also sea surface wind will be available on real time
with launching of OCEANSAT-II along with other globally available products
from polar orbiting satellites. Better satellite observations with more derived
products will be available with the launching of INSAT-3D, Meghatropiques,
Saral etc. The FDP on landfalling TCs over the BOB will help us further in
minimizing the error in monitoring (Martin and Gray, 1993) and reanalysis of
historical best tracks with modified pressure-wind relationship (Mishra and
Gupta, 1976; Courtney and Knaff, 2009; Knaff et al., 2007; Koba et al., 1991),
wind adjustment and modified Dvorak classification of intensity.
A complete reanalysis of CDs over the NIO during the satellite era should
be taken up. There is also need for wind speed adjustments (Landsea, 1993) in
the best track during periods when wind estimates were deemed to have a
consistently low or high bias, especially prior to the satellite era. These are
especially important for (i) accurately determining trends in frequency, intensity
and track of CDs, (ii) understanding the mechanism of intraseasonal and
interannual variation, (iii) prediction of genesis, intensification and movement
in short range and (iv) extended range and seasonal prediction of frequency
and intensity of CDs by dynamical and statistical models.
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